public class PhoneTest {
    public static void main(String[] args) {
        Phone[] arr=new Phone[3];

        Phone p1=new Phone("小米",1999,"白色");
        Phone p2=new Phone("华为",4999,"蓝色");
        Phone p3=new Phone("魅族",3999,"红色");

        arr[0]=p1;
        arr[1]=p2;
        arr[2]=p3;

        int sum=0;
        for (int i = 0; i < arr.length; i++) {
            Phone phone=arr[i];
            sum+=phone.getPrice();
        }

        double avg=sum*1.0/arr.length;

        System.out.println(avg);
    }
}